a switch can actually produce electromagnetic interaction. some switch can produce this interaction and cause a great effect in different types of equipment. Like for example, water generator can be used with switched as is may function accordingly to the switch being placed on the generator. This switch https://www.abestmeter.com/thermal-flow-switch/ Digital Thermal Flow Switch can actually produce electromagnetic interaction inside the generator and in the water as well.

It is a pleasure to share my latest project where magnets, motion and measurement are coming together in a DIY project. The Donut Motor is powered by a 3V lithium cell with a 235 mAh capacity.The pulse motor runs for 2 years on a single coin cell with a current of 13 uA. It is great to enter mylab and see this motor running day after day. The investigation is going on to get the current as low I can.Here is the video of the project.

@Floor, I was hoping the video gives that answer in a practical way. Reading your opening of this thread and your definition of the topic, I anticipate with an apparatus where energy, work, force, power and the methods of their measurement can be in discussion. It is easy to stay in abstractions. I learned a lot about magnets and their interactions by building this pulse motor.I hope you, and more people at this forum, start building the Donut motor. Maybe we come to a point that conventional scientific descriptions cannot explain the behavior, why this machine, in the near future, can run without any explainable input. That is in short what I hope to demonstrate with my motor project. Any reaction at this project from your side is welcome.